Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NPP and TERRA Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 1/17/2020
Index Date (NPP) Time (NPP) Lat,Lon (NPP) SZA (NPP ) Date (TERRA) Time (TERRA) Lat,Lon (TERRA) SZA (TERRA ) Distance(km) Time Diff (sec)
1 01/19/2020 19:12:28 -68.39, 70.40 91.35 01/19/2020 19:13:09 -68.38, 70.43 91.38 2.16 41
2 01/19/2020 20:03:11 68.22,-122.07 88.47 01/19/2020 20:02:37 68.22,-122.12 88.47 2.01 34
3 01/22/2020 10:38:53 69.24, 17.72 88.96 01/22/2020 10:40:01 69.09, 19.55 88.76 74.17 68
4 01/22/2020 11:29:20 -68.34,-173.75 91.99 01/22/2020 11:29:43 -68.32,-173.78 92.01 2.88 23
5 01/22/2020 12:20:04 68.23, -6.30 87.89 01/22/2020 12:19:10 68.21, -6.26 87.88 2.48 54
6 01/25/2020 02:55:33 68.55, 134.44 87.62 01/25/2020 02:56:44 68.52, 134.70 87.57 11.09 71
7 01/25/2020 03:46:12 -68.29, -57.91 92.66 01/25/2020 03:46:16 -68.31, -57.93 92.65 1.98 4
8 01/25/2020 04:36:56 68.18, 109.54 87.22 01/25/2020 04:35:43 68.20, 109.59 87.24 2.61 73
9 01/27/2020 19:12:22 68.40,-109.59 86.79 01/27/2020 19:13:18 68.40,-109.59 86.78 0.64 56
10 01/27/2020 20:03:04 -68.30, 57.86 93.32 01/27/2020 20:02:48 -68.30, 57.92 93.33 2.58 16
11 01/27/2020 20:53:35 67.49,-133.83 85.84 01/27/2020 20:52:26 67.56,-135.28 85.96 62.49 69
12 01/30/2020 11:29:14 68.36, 6.25 86.04 01/30/2020 11:29:51 68.37, 6.24 86.05 1.44 37
13 01/30/2020 12:19:55 -68.20, 173.76 94.13 01/30/2020 12:19:22 -68.22, 173.69 94.11 3.37 33

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 1/17/2020
SNOs_Map_NPP_TERRA_20200117.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 01/17/2020 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service